Strength tests on four batches of concrete show them to fail at 81, 78, 86, and 95 ksi. The standard deviation of this sample is most nearly:

Answers

Answer 1

Answer:

The standard deviation of this sample is 7.438

Explanation:

We are given that Strength tests on four batches of concrete show them to fail at 81, 78, 86, and 95 ksi.

Data: 81, 78, 86, and 95

We are supposed to find standard deviation of this sample

Formula :[tex]\sqrt{\frac{(x-\bar{x})^2}{n-1}}[/tex]

n = 4

[tex]\bar x=\frac{81+78+86+95}{4}=85[/tex]

Substitute the values in the formula :

Standard deviation=[tex]\sqrt{\frac{(81-85)^2+(78-85)^2+(86-85)^2+(95-85)^2}{4-1}}[/tex]

Standard deviation=7.438

Hence The standard deviation of this sample is 7.438


Related Questions

A home health nurse who sees a client with diverticulitis is evaluating teaching about dietary modifications necessary to prevent future episodes. Which statement by the client indicates effective teaching

Answers

Answer:

"I should increase my intake of fresh fruits and vegetables during remission"

Explanation:

Diverticulitis is an inflammation or infection in one or more small pouches in the digestive tract. After the nurses' teachings a statement that would indicate this would be "I should increase my intake of fresh fruits and vegetables during remission". This is because, even though doctors say that patients with diverticulitis should avoid high fiber diets, when in remission eating lots of fresh fruits and vegetables is known to prevent acute diverticulitis.

Kevin has a BMI of 28.5. How many calories should he eliminate from his diet every day to achieve weight loss? a. 600 calories b. 400 calories c. 100 calories d. 200 calories e. 300 calories

Answers

Answer:

A

Explanation:

A BMI of 28.5 for a male shows that he is overweight. Cutting down calories significantly can promote weight loss by 1-2 pounds each week.

Kevin has a BMI of 28.5.600 calories should he eliminate from his diet every day to achieve weight loss.

What is BMI ?

Body mass index (BMI) can be define as the  calculation that is  used in healthcare settings which is an indirect method to determine a person's body weight category.

BMI is a measurement can take the data of height, and weight to produce a calculation and this calculation  determine the relationship between weight and height.

The reason BMI is used  for the correlation between being overweight and having certain health problems, Coronary heart disease, Hypertension, Osteoarthritis, Sleep apnea and respiratory problems

For more details regarding BMI, visit

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Traditionally, the term _______ was applied to a vehicle with no permanent roof covering or side windows, but today that name is most often used to describe any convertible sports car.
Group of answer choices

Convertible

Coupe

Roadster

Sedan

Answers

The correct answer is “convertible”

The content of total body water in in adult women is *

Answers

Answer:

The content of total body water in adult women is on average 52-55 percent water.

Explanation:

The content of total body water can vary on many factors, including age, health, water intake, weight, and sex.

Answer:

if we talkin knowledge it would be bellow the iq of 16

Explanation:

When clamping the umbilical cord, the clamp closest to the baby should be approximately ________ inch(es) from the infant's body.

Answers

Answer:

The correct answer is - 7 to 10 inches.

Explanation:

The infant and placenta of the mother is connected with the umbilical cord which is need to be cut to separate the infant from placenta. Umbilical cord carries important nutrients and blood to the infant from the mother.

Clamping the umbilical cord is oldest technique which is necessary to separate the baby from the placenta. The closest clamp should be approximately 7 inches to maximum of 10 inches to the body of infant.

Thus, the correct answer is - 7 to 10 inches.

If cancer runs in your family, what will your doctor likely do?

Answers

Answer:

Your doctor will most likely treat your family.

Explanation:

2. Most office supplies are purchased through a
O mediator.
O seller.
O vendor.
O retailer.

Answers

Answer:

retailer.

Explanation:

hope it's helpful

Carafate 1 g p.o.
Identify the component missing in the order.

Answers

Answer: Frequency

Explanation:

Without frequency ex once daily; every 4 hrs, etc. You don't know when to give the med

which STD/STI can cause genital warts and cervical cancer A. Syphilis B. HPV C. Gonorrhea D. HIV/AIDS

Answers

Answer:

Hpv

Explanation:

Hpv can cause warts and cervical cancer. its the most common viral infection

Answer:

B. HPV

Explanation:

Genital warts a sexually transmitted infection (STI) caused by certain low-risk strains of the human papillomavirus (HPV). These are different from the high-risk strains that can lead to cervical dysplasia and cancer. HPV is the most common of all STIs.

Patients receive injectable medications when they're incapable of taking oral medications or when

Answers

Answer:

they have an illness such as diabetes

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